Sorption of Chromium (VI) Using Excess Municipal Sludge

Document Type : Research Paper

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Abstract

Removing or decreasing hexavalent Chromium from wastewater to the permitted levels is important due to its non-biodegradation, bioaccumulation, cancer-causing and toxic effects. In this study, biosorption of Cr(VI) from aqueous solutions by Excess Active Municipal Sludge was investigated as a function of initial Chromium (VI) concentration (in the range of 5-90 mg/l), initial pH (in the range of 2-8), agitation speed (in the range of 50-200 rpm), adsorbent dosage (in the range of 2-10 g/l) and agitation time (in the range of 5-480 min) in a batch system. The optimum conditions were found by full factorial design approach. The results showed that the equilibrium time for adsorbent is 120 minutes. Also, sorption data have a good fitness by Freundlich isotherm model and adsorption kinetic is adopted with pseudo-second order model. In batch studies, at optimum condition (90 mg/l initial concentration, pH 2, agitation speed 200 rpm and adsorbent dosage 4 g/l), the adsorption performance was about 96%; the maximum adsorption capacity was calculated about 41.69 mg of Cr/g of adsorbent. Overall, it can be concluded that Excess Active Municipal Sludge, has a good performance as a biological, biodegradable, abundant and low-cost adsorbent for the removal of Cr (VI) from aqueous solutions.

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References

1- An, H.K., Park, B.Y., and Kim, D.S. (2001). “Crab shell for the removal of heavy metals from aqueous solution.” Water Research, 35(15), 3551-3556.
2- Ahalya, N., Ramachandra, T.V., and Kanamadi, R.D. (2003). “Biosorption of heavy metals.” J. of Chemistry and Environment, 7(4), 71-79.
3- Pérez-Marín, A.B., Zapata, V., Meseguer Ortuño, J. F., Aguilar, M., Sáez, J., and Llorens, M. (2007). “Removal of cadmium from aqueous solutions by adsorption onto orange waste.” J. of Hazardous Materials, 139(1), 122-131.
4- Montanher, S.F., Oliveira, E.A., and Rollemberg, M.C. (2005). “Removal of metal ions from aqueous solutions by sorption onto rice bran.” J. of Hazardous Materials, 117(2-3), 207-211.
5- Raicevic, S., Kaludjerovic- Radoicic, T., and Zouboulis, A.I. (2005). “In situ stabilization of toxic metals in polluted soils using phosphates: Theoretical prediction and experimental verification.” J. of Hazardous Materials, 117(1), 41-53.
6- Bhattacharyya, K.G., and Gupta, S.S. (2008). “Adsorption of a few heavy metals on natural and modified kaolinite and montmorillonite: A review.” Advances in Colloid and Interface Science, 140(2), 114-131.
7- Vijayaraghavan, K., and Sang Yun, Y. (2008). “Bacterial biosorbents and biosorption.” Biotechnology Advances, 26, 266-291.
8- Kanchana, S., Jeyanthi, J., and Dinesh Kumar, R.R. (2011). “Equilibrium and kinetic studies on biosorption of chromium (VI) on to chlorella species.” European J. of Scientific Research, 63(2), 255-262.
9- Sen, M., and Ghosh Dastidar, M. (2011). “Biosorption on Cr (VI) by resting cells of fusarium solani.” Iran.
J. Environ. Health. Sci. Eng., 8(2), 153-158.
10-Ziagova, M., Dimitriais, G., Aslanidou, D., Papaioannou, X., Tzannetaki, E.L., and Liakopoulou-Kyriakides, M. (2007). “Comparative study of Cd(II) and Cr(VI) biosorption on staphylococcus xylosus and pseudomonas Sp. in single and binary mixtures.” Bioresource Technology, 98, 2859-2865.
11- Şahin, Y., and Öztürk, A. (2005). “Biosorption of chromium (VI) ions from aqueous solution by the bacterium bacillus Thuringiensis.” Process Biochem, 40, 1895-1901.
12- Loukidou, M.X., Zouboulis, A.I., Karapantsios, T.D., and Matis Kostas, A. (2004). “Equilibrium and kinetic modeling of chromium (VI) biosorption by aeromonas caviae.” Colloids and Surfaces A: Physicochemical and Engineering Aspects, 242(1-3), 93-104.
13- Ozdemir, G., Ceyhan, N., Ozturk, T., Akirmak, F., and Cosar, T.,(2004). “Biosorption of chromium(VI), cadmium(II) and copper(II) by Pantoea sp. TEM18.” Chemical Engineering Journal, 102(3), 249-253.
14- Srinath, T., Verma, T., Ramteke, P. W., and Garg, S. K. (2002). “Chromium (VI) biosorption and bioaccumulation by chromate resistant bacteria.” Chemosphere, 48(4), 427-435.
15- Zhou, M., Liu, Y., Zeng, G., Li, X., Xu, W., and Fan, T. (2007). “Kinetic and equilibrium studies of Cr(VI) biosorption by dead Bacillus licheniformis biomass.” World J Microbiol Biotechnol., 8, 23-43.
16- Isfahan Water and Wastewater Agency’s Education and Public Relations. (2010). “Southern Isfahan wastewater treatment plant.” <http:// www.abfa-esfahan.ir.ac.uk/phase-trans/html>, (Oct. 17, 2010).
 17- APHA. (1998). Standard methods for examination of water and wastewater, 15th Ed.,American Public Health Association, USA.
18- Montgomery, D.C. (2000). Design and analysis of experiments, 6th Ed., John Wiley and Sons, N.Y.
19- Fooladyfard, R., Azimi, A., and Nabi Bidhendi, Gh., (2008). “Evaluation of cadmium adsorption using excess municipal activated sludge powder in batch reactor.” J. of Water and Wastewater, 67, 2-8.
(In Persian)
 20- Abdullah, M.A., and Devi Prasad, A.G. (2009). “Kinetic and equilibrium studies for the biosorption of Cr (VI) from aqueous solutions by potato peel waste.” International Journal of Chemical Engineering Research, 1(2), 51-62.
21- Quintelas, C., Fernandes, B., and Castro, J. (2008). “Biosorption of Cr (VI) by three different bacterial species supported on granular activated carbon - A comparative study.” J. of Hazardous Materials, 153, 799-809.
22- Shams Khorramabadi, G., Darvishi Cheshmeh Soltan, R., and Jorfi, S. (2009). “Cd(II) adsorption using waste sludge from a municipal wastewater treatment system.” J. of Water and Wastewater, 21(4), 57-62. (In Persian)
23- Ho, Y.S., and McKay, G. (1998). “A comparison of chemisorptions kinetic models applied to pollutant removal on various sorbents.” Trans Ichem., 76, Part B, 332-341.
24- Venkata Subbaiah, M., Kalyani, S., and Sankara, R. G. (2008). “Biosorption of Cr(VI) from aqueous solutions using trametes versicolor polyporus fungi.” E-Journal of Chemistry, 5 (3), 499-510.
25- Inglezakis, V.J., and Poulopoulos, S.G. (2006). Adsorption, ion exchange and catalysis, 1st Ed., Elsevier Ltd.
26- Michalak, I. (2007). “Biosorption of Cr(III) by microalgae and macroalgae: Equilibrium of the process.” American Journal of Agricultural and Biological Sciences, 2(4), 284-290.
 
Journal of Water and Wastewater; Ab va Fazilab ( in persian )
Volume 25, Issue 1 - Serial Number 1
Serial number:89
March and April 2014
Pages 34-43

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